13421289

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 21288960

約数和(自身を除く): 7867671

約数列:

[1, 3, 7, 21, 43, 89, 129, 167, 267, 301, 501, 623, 903, 1169, 1869, 3507, 3827, 7181, 11481, 14863, 21543, 26789, 44589, 50267, 80367, 104041, 150801, 312123, 639109, 1917327, 4473763, 13421289]

約数ペア:

[(1, 13421289), (3, 4473763), (7, 1917327), (21, 639109), (43, 312123), (89, 150801), (129, 104041), (167, 80367), (267, 50267), (301, 44589), (501, 26789), (623, 21543), (903, 14863), (1169, 11481), (1869, 7181), (3507, 3827)]